RESUMO
INTRODUCTION: The maxillary sinus can be affected by dental infections because of its close relationship with upper teeth. This study aimed to assess the most common types of maxillary sinus alterations and to associate them with odontogenic conditions using cone-beam computed tomographic (CBCT) images. METHODS: CBCT scans of 400 patients showing sinus disease in 1 or both maxillary sinuses were evaluated. Sinus alteration was considered as follows: generalized or localized mucosal thickening (MT), maxillary sinusitis (MS), and retention cysts (RCs). The odontogenic conditions evaluated were inadequate endodontic treatment, periapical lesions, and periodontal bone loss. Descriptive and multiple logistic regression analyses were performed. RESULTS: Sinus diseases were observed in 85.9% of the maxillary sinuses. The most prevalent condition was generalized MT (65.2%) followed by localized MT (24.8%), MS (6.4%), and RCs (3.6%). Generalized MT was more related to males (odds ratio = 1.45, P < .05) and periodontal bone loss (P < .05). Localized MT was associated with periapical lesions (odds ratio = 3.09, P < .05) and showed a close anatomic relationship between teeth and the sinus floor (odds ratio = 2.77, P < .05). There were no statistically significant associations between either MS or RCs and the odontogenic conditions studied. CONCLUSIONS: The most prevalent sinus diseases were the generalized and localized MT, and they were the only ones related to odontogenic conditions (periodontal bone loss and periapical lesions, respectively). We emphasize that CBCT imaging is an appropriate method for evaluating the maxillary sinus findings and their associated odontogenic conditions.
Assuntos
Tomografia Computadorizada de Feixe Cônico/métodos , Seio Maxilar/diagnóstico por imagem , Sinusite Maxilar/diagnóstico por imagem , Odontogênese/fisiologia , Doenças dos Seios Paranasais/diagnóstico por imagem , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Seio Maxilar/anatomia & histologia , Seio Maxilar/patologia , Sinusite Maxilar/etiologia , Sinusite Maxilar/patologia , Pessoa de Meia-Idade , Doenças dos Seios Paranasais/patologia , Doenças Periapicais/diagnóstico por imagem , Doenças Periapicais/patologia , Adulto JovemRESUMO
This randomized trial evaluated the 12-month clinical performance of nanofill, a nanohybrid, and a microhybrid composite in restorations in occlusal cavities of posterior teeth. This study utilized 41 patients, each of whom had three molars affected by primary caries or the need to replace restorations. All restorations were performed in accordance with the manufacturer's recommendations and evaluated in accordance with U.S. Public Health Service-modified criteria. Based on the results of the present study, the material investigated demonstrated acceptable clinical performance after 12 months of clinical service. Long-term re-evaluations are necessary for a more detailed analysis of these composites.
Assuntos
Resinas Compostas/química , Materiais Dentários/química , Restauração Dentária Permanente/classificação , Nanocompostos/química , Adolescente , Criança , Cor , Cárie Dentária/terapia , Forramento da Cavidade Dentária , Cimentos Dentários/química , Adaptação Marginal Dentária , Índice de Placa Dentária , Seguimentos , Cimentos de Ionômeros de Vidro/química , Humanos , Cura Luminosa de Adesivos Dentários , Dente Molar/patologia , Índice Periodontal , Recidiva , Retratamento , Propriedades de SuperfícieRESUMO
This study sought to evaluate the clinical performance of composites filled with nanoparticles six months after placement in the occlusal surface of molars with Class I cavities. This study involved 41 patients, each of whom had three molars affected by primary caries or the need to replace restorations. All restorations were performed in accordance with the manufacturer's recommendations and evaluated in accordance with USPHS modified criteria. Based on the results of the present study, composites reinforced with nanoparticles can be used in posterior teeth, although their performance was not superior to that of the microhybrid composite. Long-term re-evaluations are necessary for a more detailed analysis of these composites.
Assuntos
Resinas Compostas/química , Materiais Dentários/química , Restauração Dentária Permanente/métodos , Dente Molar/patologia , Nanocompostos/química , Adolescente , Bis-Fenol A-Glicidil Metacrilato/química , Cor , Colagem Dentária , Cárie Dentária/terapia , Preparo da Cavidade Dentária/classificação , Adaptação Marginal Dentária , Restauração Dentária Permanente/classificação , Adesivos Dentinários/química , Seguimentos , Humanos , Teste de Materiais , Recidiva , Retratamento , Propriedades de Superfície , Resultado do TratamentoRESUMO
Este trabalho avaliou subjetivamente a influência da sensibilidade dos filmes radiográficos periapicais (Kodak Ektaspeed Plus do grupo E, Agfa-Gevaert do grupo D/E e o filme Kodak Insight do grupo E/F) e tempo de revelação na qualidade da imagem, obtida de uma mandíbula humana seca adulta. Os filmes foram processados pelo método temperatura/tempo em doze tempos de revelação. Obtidas as imagens, estas foram avaliadas por nove examinadores. Após a análise dos resultados conclui-se, que o filme Ektaspeed (40%) seguido pelo Agfa (33%) foram os que apresentaram as melhores imagens, sendo o Ektaspeed (50%) preferido pelos clínicos. O filme Agfa revelado com 2 minutos foi a radiografia de escolha pelos examinadores
